poi

[hw97k 36]

jst zeroing the new gun in today,a strong wind was directly behind me will this effect the poi ,seemed ok at 35 yds grouping in 20mm circle opened up at 45 yd to around 50 mm .put around 100 pellets through first just wondering if its a bit of both i e new gun and sutch? this question is open to everyone cheers!

[rossi_j 99]

You may notice a change in poi as your new rifle gets settled in and the power changes slightly, usualy increasing a little I belive, you can only be sure of perfect zero on an indoor range or on a perfectly still day, the wind you mentioned above will have an effect on poi as it will never be consistant from shot to shot in speed and direction, you may be able to rule this out as negligable but toataly depends on speed and direction. The answer is your zero is probably very close to zero, when you go out find the most shelterd area to check your zero and adjust if necacery, you should get into the habbit of checking this everytime you go to a shoot weather it be targets and especialary quary, try to avoid shooting in anything more than a breeze if you can, if you have to shoot in wind you will have to make allowences and only experiance will tell you how mutch by, when your rifle becomes an extention of your arm from practace in different circumstances it will become second nature to you then you can just go with the flow and follow your feeling.

This is in my opinion ofcourse and others may think differently.

 

As no one else has passed comment thaught id kick things off, hope this helps a little

 

In slight wind we are taliking slight differences but ofcourse range will play a big part aswel as caliber ect ect.

 

.atb. .ste.

[rossi_j 99]

The short answer is that the wind mentiond will be affecting your grouping, at 30 and 50 yds, obviously more so at 50.

.atb. .ste.

[pianoman 3,587]

As you are known here as hw97K, would this be the make/model of your new rifle by any chance; Weihrauch HW97K?

 

And what calibre?

 

ATB

 

Simon

[andyfr1968 772]

If the winds blowing from DIRECTLY behind you (or in front), it really won't make much difference at all but as Ste's already said, you really need still conitions to set it all up properly.

 

Also 100 or so shots is nowhere near enough shots for your HW to have bedded in properly, it will have settled a bit by now but it won't be until you're at the end of your third tin that it will have totally bedded down.

 

Cheers.

[hw97k 36]

thanks all ,got rid of the hw and got a tx200 hc in .177 left handed in walnut,just seems to fit me better and got a better balance than the hw ,still love the hws though just wish the quality was how it used to be ,what are your opinions on both guns lads?

[hw97k 36]

As you are known here as hw97K, would this be the make/model of your new rifle by any chance; Weihrauch HW97K?

 

And what calibre?

 

ATB

 

Simon

it was simon loved them had 1 in every calibre .177 .20 and .22 but got ripped off by a well known hw dealer over the state of a supposedley new spring,and quality control wasnt on top of the wineracks list ,so i lost faith in both of their attitudes towarrds customers.deliberated for a while wether to get a 97kt but heard standards hadnt changed so bought british and blown away with airarms quality so there ya go mate ta for asking

[matt_hooks 188]

If the winds blowing from DIRECTLY behind you (or in front), it really won't make much difference at all

 

I disagree.

 

Air resistance makes a huge difference to the speed change with distance. It changes the amount of air resistance, and therefore directly affects the rate the pellet slows down at (and therefore the point on the arc that it impacts the target.)

[rossi_j 99]

If the winds blowing from DIRECTLY behind you (or in front), it really won't make much difference at all

I disagree.Air resistance makes a huge difference to the speed change with distance. It changes the amount of air resistance, and therefore directly affects the rate the pellet slows down at (and therefore the point on the arc that it impacts the target.)

 

Also I have never shot or even been in a wind that blows in a perfectly constant speed or direction, therefor the shot will not be constant, we are talking a very small diference here though

 

So where andy says "wont make mutch diference at all" he is right especialy over air rifle distances but again toataly depends on wind wich is ever changing variable.

 

Edited to say, I would agree with what both ov you have said, even tho they are conflicting opinions, if that makes any sense, It realy depends on what amount of difference "mutch difference" an "huge difference" is you could both be talking 10mm at 35yds for example

 

.atb. .ste.

Edited February 28, 2011 by rossi_j

[rossi_j 99]

When I have some perfectly consistant wind I will put it to the test. . . . .

 

Dont hold your breath. . .

 

Anyone have permission to shoot in a wind tunnel? :laugh:

 

.atb. .ste.

[andyfr1968 772]

If the winds blowing from DIRECTLY behind you (or in front), it really won't make much difference at all

 

I disagree.

 

Air resistance makes a huge difference to the speed change with distance. It changes the amount of air resistance, and therefore directly affects the rate the pellet slows down at (and therefore the point on the arc that it impacts the target.)

 

Hi, Matt.

 

I know what you're saying and I agree that it will make a difference but only a very samll one in the real world. Most of us wouldn't go out in a howling gale so for arguments sake, let's say we're dealing with a wind speed of 20mph max which is still a fairly stiff breeze. Depending on caliber, pellet weight etc let's say a full ish power pellet's leaving the gun at around 500mph then a 20mph difference in front or from the rear will only make a very small POI change at an average 30 odd yard zero.

 

I'm not saying there'll be no change at all, only a very slight one but as has been said, it's not a good idea to set your gear up in anything other than still conditions.

 

Cheers.

Edited February 28, 2011 by andyfr1968